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I have Windows 7 and Ubuntu 12.04 LTS on two separate partitions on my desktop. I used to be able to get the GRUB menu at startup when I had an older Ubuntu version (probably 10.x) but, after upgrading to 12.04 LTS, the menu just flashes for a fraction of a second, giving me no chance to make a selection. I have run boot-repair, tried holding down the SHIFT key, and a number of other solutions described on this forum. Nothing seems to work.

Here is the log from my boot-repair session: I really hope that some Ubuntu expert can figure out what's wrong. Really appreciate the help/

Thanks... - Ajoy

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I do not see anything wrong. You have two systems so menu should show by default. And you have the default 10 sec timeout still set. Does Ubuntu still boot fully? If you press down arrow key right after BIOS 5 or 6 times does Windows boot, (you do not want 4 as that will give recovery mode which may cause more issues). – oldfred Aug 10 '13 at 4:34
I see some suspicious lines: For example, line numbers 355-356 say: "Warning: extended partition does not start at a cylinder boundary. DOS and Linux will interpret the contents differently." – Ajoy Bhatia Aug 10 '13 at 4:55
Also, lines 420-426. – Ajoy Bhatia Aug 10 '13 at 4:58
@oldfred And lines 460 and 479 say: "Error: Can't have a partition outside the disk!" – Ajoy Bhatia Aug 10 '13 at 5:00
I have this exact problem. Win7/12.04. – Tamlyn Sep 26 '13 at 10:18

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